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Trinucleoides
Taxonomy
Trinucleoides was named by Raymond (1917) [Sepkoski's age data: O Llvi Sepkoski's reference number: 2]. It is not extant.
It was assigned to Asaphida by Sepkoski (2002); and to Dionididae by Jell and Adrain (2002).
It was assigned to Asaphida by Sepkoski (2002); and to Dionididae by Jell and Adrain (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Trinucleoides Raymond |
| 2002 | Trinucleoides Jell and Adrain p. 455 |
| 2002 | Trinucleoides Sepkoski |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Trinucleoides Raymond 1917
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Llandeilo to the top of the Onnian or 461.10000 to 449.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llanvirn | Czechia (Prague) | T. sp. (76458) | |
| Early/Lower Llandeilo | Sweden | T. sp. (2939) | |
| Actonian - Onnian | China (Sichuan) | T. sp. (7255) |